| 摘要 |
<p>There are disclosed new polymers of piperidine having the general formula: in which R1, R2, R3, R4, each independently of the others, are an alkyl radical having 1 to 4 C, or R1 and R2, and/or R3 and R4 form a cycloalkylene radical having 3 to 12 C, R5 is hydrogen, an alkyl, oxyalkyl or alkoxy radical having 1 to 6 C, or an aryl or an aryl-alkyl radical having 6 to 18 C, an alkenyl radical having 2 to 6 C or a -(CH2)X-CO2-R7 radical in which X is a number from 0 to 12, and R7 = H, a metal, an alkyl, alkylene, alkenyl, alkenylene radical containing 1 to 20 C; R6 = H or an alkyl having 1 to 4 C and n is an integer from 2 to 100. Use of the piperidine polymers having general formula (I) as stabilizers of polymeric substances, and polymeric compositions stabilized with said piperidine derivatives are also disclosed.</p> |
